Electricity and Circuits: Complex Circuits - 无忧得胜-网上国际课程 (5edu.win)

1#

94.28: Four identical lightbulbs K, L, M, and N are connected in the eledtwkg8o1 b 1yftdw;01ctrical circuit shown in the accompanying figure. In order of decreasing brightness (staf0g dyok8;d1tw 1b1wtrting with the brightest), the bulbs are:

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2#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

98.27: Four identical lightbulbs K, kew38li6l) sz .lvg-1 ny, jhyL, M, and N are connected in the electrical circuit shown in the accompanying diagrhlw ljv1. y8e)i-g3ksyl 6 zn,am. Rank the current through the bulbs.

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3#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

96.37: Four identical lightbulbs K, L, M, and N are c9 aw1yxh(m( 64v )ovxwodfw- wonnected in the electrical circuit shown in th4- afm9o1y wxv(hvww)6 wdxo (e accompanying figure. Bulb M burns out. Which of the following statements is true?

A. All the lightbulbs go out.

B. Only bulb M goes out.

C. Bulb N goes out but at least one other bulb remains lit.

D. The brightness of bulb N remains the same.

E. Bulb N becomes dimmer but does not go out.

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4#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

95.32: Four identicalf,/6 :is xukwb lightbulbs K, L, M, and N are connected in the electrical circuit shown in the accompanying figure. Bulb K burns out. Which of the follo6/:sbxki w, fuwing statements is true?

A. All the lightbulbs go out.

B. Only bulb N goes out.

C. Bulb N becomes brighter.

D. The brightness of bulb N remains the same.

E. Bulb N becomes dimmer but does not go out.

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5#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

01.21: Five identical light bulbs each, with a resistance of 10/s*aq.wwy,s m *5xocs ohms, are connected in a simple electrical circuit with a switch and a 10 volt battery as shown in the diagram s*wwy ,x/m *c.s5 aoqsbelow.
The steady current in the above circuit would be closest to which of the following values?

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6#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

01.22: Five identical light bulbs each, with a resistance of 157 z 4npyedb 8/dnye,i0 ohms, are connected in a simple electrical circuit with a sw,bd7e8pn/5zdi4yn ey itch and a 10 volt battery as shown in the diagram below.
Which bulb (or bulbs) could burnout without causing other bulbs in the circuit to also go out?

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7#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

04.39: The circuit shown has an idetm bzh5jbe35+dt- p:r al ammeter with zero resistance and four identical resistance light bulbs which are initially illuminated. A person removes the bulb R4 from its socket thereby permanently breaking the electrical circuit at tr tbmbt+epd hz-: 55j3hat point. Which statement is true of the circuit after removing the bulb?

A. The voltage from B → C increases.

B. The power supplied by the battery increases

C. The voltage across R1 increases.

D. The ammeter reading is unchanged.

E. The bulb R2 maintains the same brightness.

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8#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

05.37: For the circuit shown, a shorting wire of negligible resi66t3vko eoa tj l9*w(xstance is added to the circuit between points A and B. When this shorting wire is added, bulwxoe tv(6ta9kl6o 3*jb #3 goes out. Which bulbs (all identical) in the circuit brighten?

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9#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

09.26: For the circuit shown, when a shortingl(drr1+bxa9z0edsj i08 m j)g wire (no resistance) connects the points labeled A and B, which of the numbered lightbulbs be 0xmi09jdrl+gr8j db)z ase 1(come brighter? Assume that all four bulbs are identical and have resistance R.

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10#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

03.35: A circuit is connected as shown. All lightbulbs are identical. When thepghqyzoe a 35,8w3,sk switch in the circuit is closed illumk pqo z8a,53eg, 3swhyinating bulb #4, which other bulb(s) also become brighter?

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11#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

13.38: Five identical light bulbs are connected into a circuit 6*c;3 appje ozjq/cp-as shown. All wires are ideal with no resistance, and the ideal battery has emf ξ . When the switch S in the circuit is closed, aside from bulb #5, which joz/c-;pc 3e jpapq*6of the other bulbs brighten?

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12#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

15.10: For the circuit shown, the three light bulbs have identical resiyh9ezqo- ke: 5stance, the battery ish z k:y-e9eqo5 ideal, and all wires have no resistance. Which one of the following choices correctly identifies the light bulbs that either become dimmer or go out completely when the switch, S, in the circuit is closed?

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13#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

15.39: For the circuit shown, the four l 8+y8jvey2ywo+f m,my ightbulbs have identical resistance,the battery is ideal and all wires have no resistance. After the switch, S, in the circuit is closed, which one of the following choices correctly describes what happens to the magnitude of the current ayj+2+m8yevm ,ow y 8fyt the point labeled P and to the magnitude of the potential difference from Wto X?

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14#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

16.31: The circuit shown has 4 identical light bulbs connected to hl7nb18 ;wcuhan ideal battery. If bulb #2 were rl1; hnbu7 8hwcemoved leaving an open circuit there, what happens to the voltage across both bulb #1 and from Q to X?

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15#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

07.30: In the following circuit diagram, which one of tx,is av p,psqg39g,3 hhe bulbs will not light? g,a,p3psg9q 3 xhvsi,

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16#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

07.33: For the circuit shown, the ammeter reading is initnoi57*u * ltqhially I. The switch in the circuit thtuql*7*i n 5ohen is closed. Consequently:

A. The ammeter reading decreases.

B. The potential difference between E and F increases.

C. The potential difference between E and F stays the same.

D. Bulb #3 lights up more brightly.

E. The power supplied by the battery decreases.

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17#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

11.38: For the circuit shown, the fojlib:vdkudq4zsbuy 6 3d( 3.f;g-go0ur light bulbs have identical resistance, all wires have zero resistance, and the ldv;gif(:b 0k q-dj3bgzuud .6 43osybattery is assumed to be ideal with emf ξ . When the switch, S, in the circuit is closed, a wire of zero resistance is added into the circuit. Which of the light bulbs will be dimmer after the switch is closed?

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18#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

14.22: For the circuit shown,od*rid-7kmh 7 all three lightbulbs have the same resistance. The battery and wires have nrdhod- im k77*o resistance. What is the proper ranking of the bulbs’ brightness?

A. $Bulb 1 = Bulb 2 = Bulb 3$

B. $Bulb 3 < Bulb 2 = Bulb 1$

C. $Bulb 2 < Bulb 1 < Bulb 3$

D. $Bulb 1 = Bulb 2 < Bulb 3$

E. $Bulb 1 = Bulb 3 < Bulb 2$

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